why we use separate earthing for two seprate machine??

1 Answers  

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Can we use shunt trip coil instead of trip coil with protection relay for protection?

0 Answers  

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i heard that power factor(PF) is the main concern for industries, if they are maintaining PF around 0.6 they will be fined for that. now the question is, how can they improve the PF ranging between 0.9 to 0.95 which is safe for them i,e escaping from the fine?

5 Answers  

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how to calculate circuit breaker capacity

6 Answers   Siemens,

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1 tr is equal to how many Kw .is there any specific formula for this to get the result .

13 Answers   Cipla, LG, NSN,

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can motors working at parallel operation like D.G set and transformers? It means asking about two motors coupled with same load???

1 Answers  

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how u measure/calculate renge of capacitor,capacitor has no any rating tag.what is the theory of measure of capacitons.

0 Answers   Marriott,

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What is the working principle of VFD

3 Answers   HCL,

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What are the minimum acceptable insulation resistances of insulation of underground cable suitable for 0.440kV,11kV, 33kV and 66kV?

2 Answers  

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Why the dc voltage drop during starting of emergency lube oil pump? The Voltage drop from 135kv to 125 kv for one min. before re-establish to 135kv?

0 Answers  

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Differcence between UPS and Inverter.

4 Answers   Adani,

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how many joints are allowed in underground HT cable of 1 KM

0 Answers  

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